Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         "Lapideum Regnum" nom. inval. - mineral kingdom
           Class "Minerae" - minerals
             Order "Salia" - salts
               Genus "Nitrum"
                 01 "Nitrum humosum"
                 02 "Nitrum qvartzosum album"
                 03 "Nitrum qvartzosum luteum"
                 04 "Nitrum qvartzosum rubrum"
                 05 "Nitrum qvartzosum purpureum"
                 06 "Nitrum qvartzosum coeruleum"
                 07 "Nitrum qvartzosum viride"
                 08 "Nitrum qvartzosum viridi-coeruleum"
                 09 "Nitrum siliceum"
                 10 "Nitrum spatosum acutum utrinque"
                 11 "Nitrum spatosum truncatum utrinque"
                 12 "Nitrum spatosum, fragmentorum angulis oppositis"
                 13 "Nitrum marmoreum foetidum"